Håvard Arnestad

Stipendiat - Digital signalbehandling og bildeanalyse

English version of this page

E-post haavaarn@ifi.uio.no

Mobiltelefon 99442592

Rom 4463

Brukernavn

Besøksadresse Gaustadalléen 23B Ole-Johan Dahls hus 0373 Oslo

Postadresse Postboks 1080 Blindern 0316 Oslo

Andre tilknytninger Det matematisk-naturvitenskapelige fakultet (Student)

Last ned visittkort

Se min engelske nettside for mer informasjon: HER

See my English website for more information: HERE

Publikasjoner

Viggen, Erlend Magnus & Arnestad, Håvard (2022). Inhomogeneous P- and S-wavefields radiated into isotropic elastic solids. I Viggen, Erlend Magnus (Red.), Proceedings of the 45th Scandinavian Symposium on Physical Acoustics. Norsk Fysisk Selskap. ISSN 978-82-8123-022-4. Fulltekst i vitenarkiv
Arnestad, Håvard Kjellmo & Viggen, Erlend Magnus (2021). A fast semi-analytical method for propagating leaky Lamb wavefields. I Viggen, Erlend Magnus (Red.), Proceedings of the 44th Scandinavian Symposium on Physical Acoustics. Norsk Fysisk Selskap. ISSN 978-82-8123-021-7. Fulltekst i vitenarkiv
Viggen, Erlend Magnus & Arnestad, Håvard Kjellmo (2021). Understanding sound radiation from surface vibrations moving at subsonic speeds. I Viggen, Erlend Magnus (Red.), Proceedings of the 44th Scandinavian Symposium on Physical Acoustics. Norsk Fysisk Selskap. ISSN 978-82-8123-021-7. Fulltekst i vitenarkiv

Arnestad, Håvard & Viggen, Erlend Magnus (2022). A fast method for simulating Lamb wave propagation in coupled non-parallel plates.
Viggen, Erlend Magnus & Arnestad, Håvard (2022). Intensity of inhomogeneous waves in simple solids.
Arnestad, Håvard Kjellmo & Viggen, Erlend Magnus (2021). A fast semi-analytical method for propagating leaky Lamb wavefields. Vis sammendrag
A fast method is presented for calculating the wavefields from initialized leaky Lamb waves on plates immersed in sufficiently light fluids. The method works by precomputing the dispersion relation and attenuation, and propagating the wavefields in the frequency domain. An angular spectrum approach is used to include leakage into surrounding fluid. Compared to matching FEM simulations, the computations are performed in the order of seconds, rather than hours. The method also benefits from being much easier to set up correctly, but is on the other hand less general in that it cannot handle e.g. scattering from defects. The correspondence is shown to be good for the case of interest.
Viggen, Erlend Magnus & Arnestad, Håvard Kjellmo (2021). Understanding sound radiation from surface vibrations moving at subsonic speeds.

Publisert 22. sep. 2021 13:15 - Sist endret 22. sep. 2021 16:50